Type-writing machine.



A. G. I'. KURowsKI.

TYPE WRITING MACHINE.

`APPLICATION IILED SEPT. 27, 191B.

Patented Aug. 11., 19m its 2 SHEETS-SHEET 1.

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A. G. I?. KURGWSKI.' TYPE WRITING MACHINE.

y Y APPLICATION I ILBD SEPT. 27,1912. V V 1,106,950, Patented Aug. 11, 1914 2 SHEETS-SHEET 2.

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'which the `following is aisp'ecitication.

The present invention relates to typewritlimmnSTATEs narrar orales.

ALFRED G. I. xu'izowsm, orlvnw Yoan, n.' Y., Assrenon 'ro unnnnwoon Trrng f wnrrnn GOMPANY, or NEW Yoan, N. Y., A conroaAr-rou or DELAWARE.

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Specification of Letters Patent. Pateted Aug 1 1 191% Application ied September 27, `1.912. Serial No. 722,582.

nea known that I, Amm G. r. KU;-

Rowsnr ia citizen of the United States, residing inBrooklyn borough, in -the county 4of New York, city and State of New York, 1

have' inventedl certain'new and useful Iming machines, and" especially to machines; which have atabulatlng mechanism, 1n

v .which va series of stops on the typewriter position of thetypewriter carriage, and?v carriage can be selectively moved intopol siti'On,l where they are'intercepted' by key-n` operated .counter-stops and vthereby arrest" the typewriter carriage'.y

In the present 1n tance, the invention is shown as applied to an Underwood type;

writing machine in which there is an array l of stops on the paper carriage, which may;

, lbe normally in inetfective positions. lWhenE moved'into effective said stops will have itspath of movement ositions, any one o'fl during the travel of the typewriter carriage intercepted by a key-operated decimal ort counterstop, and thereby said stop will ar-g rest said carriage.` These carriage stops may be mount-ed on a rack bar', in which! they slide, and from which they are projected towhere they will be intercepted by Asaid counter-stops. For so projecting said;

through a rack bar.

vcarriage stops, a key may be arranged ati theftypewriter keyboard so ,as to move a setting arm, which arm 1s arranged to alinev with diiierentrack stops according to the `said setting' arm on the depression of said.

keywill project one of said rack stops.l

The rack bar'which carries said stops may 4embrace them so ,that the stops are held by internal teeth on said bar. This rack within l,which said stops lie, preferably comprises Y spring detents which are arranged to hold said stops in any position in which they -may be standing... Said detents may comprise spring. pressed balls which are arranged tobear against the edge of said stops, and thesprings cause said balls to ,enter notches therein. For returning any of thelprojected stops to ineffective 'posi-' tion,`ther e may be provided a cam member pivoted on the casing in which Athe key-l operated stops are guided, and said cammember'v maybe swung over said counterstops so as to lie Vin the path of the rack stops and then the cam will return any pro- ]ected rack stops. .-Anyrack stop whichdoes not lie'in the vpath of said swinging cam at the time the cam is swung to operative position will be returned by the travel of .the carriage, which causes said stops to strile said cam' and ride up on-the surface o 1 v- -The present invention provides a simple, effectivel and' compact structure, which is not likely to foul the work-sheet orprovel otherwise objectionable.

@ther features and advantages will hereinafter appear.

In the accompanylng drawings, Figure l is a diagrammatic side view of a typewriting machine showing my invention applied thereto. Flg. 2 1s a perspective View of some principall parts of my invention and some related parts. Fig. 3 is a plan view ofthe same. Fig. 4 isa side elevation of a portion ofthe machine. Fig.

In the Underwood typcwriting;l machine, keys 1 depress levers 2 to swing bell cranks 3 so that type'bars It swing upwardly and rearwardly, causing type 5 to print against a work-sheet on a platen 6.V Said vplaten is mounted in a traveling carriage 7 which is drawn in letter-feeding direction by means of a sprmg barrel 8, and is controlled in said letter feed by means of an escapement wheel 9 carrylng a ratchet wheel 10, which ratchet Works in a rackll on said carriage. escapen'oent wheel 9 is controlled by vibrating dogs 12 and 13, which are operated by means of a 'frame 14 forming an extension of a universal bar 16, which` universal bar is operatedl by heels 17 on the type bars as they rise toward the carriage. In this way, every time a key is depressed, the type 5 makes an impression on the carriage and the typewriter carriage is fed forward one letter space. In order to position said carriage at any desired letter space, a tabular mecha nism is employed comprising key levers 1S .pivoted at 19 which, when depressed, cause 5 is .'a section Said is fast on the typewriter carriage and conl sequently when the stop' 21 strikes the counfeeding direction by means of spring barrel 8. For this purpose, each counter-stop 20 when raised, 1s arranged to lift the rack 11 out of the ratchet wheel 10, and thus free the carriage 7 fromv the control of the dogs 12 and 13. This is accomplished by means of l a universal bar'23 fast-,on a rock shaft 24,

which carries a rock arm 25, and said universal bar is arranged every time any plunger 20 is raised,.to be struck by a heel 26 on said plunger 20, and draw down a link 2'( so that said link will swing bar 28 onits' pivot 29 and lift the rack 11, swinging it on its pivoted arms 3G. Said bar 28 is provided with a wheel 31 which is permitted to revolve idly as the rack bar 11 slides over so that said carriage will be drawn forward without resistance. The rack bar 22 in which the stops 21 are carried, is kfast on the typewriter carriage, on which it is supported by arms 32, and Said rack bar is built up of two rack bars facing each other,.33 and 34, which have teeth 35 facing each other, so that the stops 21 may rest between said teeth and be held firmly against movement lenga` tudinally of the bar. Over the top of the bars and' 34 is a casing 35- comprising openings 3G, through which the upper ends of the stops 21 project when said stops are f in ineffective position in said rack bar. The

upper ends of the .rack stops 21 are somev what smaller than the lower ends, having shoulders 37 which are arranged to strike against theprojecting edges 36a o f the casing 35a, and hold saidA stops against being withdrawn from above. In the reducedupper end of said stops- 21 there formed onat least one side, notches 38 in which i spring pressed balls 39 are pressed by means y to etfective of coil springs 40. Said Springs 40 as seen in Figs. 3 and-5,l1ie in openings 41 in each of the rack bars 33 andl- 34, and are so arranged that the springs for adajcent stops are in openings in opposite rack bars. The casing 35a is held on the rack bars 33 and 34 by means of screws 42, 'sothat said united rack bars, with the stops inthem form an easily handled unit. l l.'

The stops-21 are normali in ineffective position, as seen in Fig. 15- hey'are moved position, as seen m Fig. 4, by

means of as de arm 43 which is operated by a `key' 44, and which on depressionof 'said key is moved to dotted line position, seen in Fig. 4, 4carrying down with it the stop 21.. Said stop 21 then will lie in the path of any counter-stop 20 which may be raised. The connections between the key '44 and the slid arm 43 include a rock arm 445 oxLwhichv slide arm 43 is pivoted vat an enlargedopen ing i3, (Seel Fig. l); a rock shaft 46, on

2 which said rockarm 45 is fast, and a rock arm 4'vfast on. the shaft 46, which arm 47 has a fork 48 which is arranged to underlie the lever 49 of key 44. Said slide arm 43 is normally drawn'upward by means of a spring 50 which isanchored in a pin projecting from Athe casing 51 in whichJ the counter-stops 20 are guided. The pin 52 by which the slide arm 43 is pivoted to the rock' arm 45, forms a guide lfor said slide arm 43 at its lower end, while at 1ts upper end sald arm 43 rides in a slot 53 formed 1n a plate 54 on the upper end of said casing 51. The v slide arm 43 has a U-shaped head andis located so that it alines at each letter space with one of the stops 21, and the stop which it is arranged to depress at any moment is the one whichv would lie against the extreme left hand counter-stop 20, as viewed in Fig. 2, if both'the stop and counter-stop were in eii'ective position. f

In the structure herein shown, the counter-4 stops 20 form adecimal tabulator, and the left hand counter-stop 20,'as seen in F ig. 2,

will arrest the carriage .at the units position,- 1n any column. The stop which the slide arm 43 will project at any moment is the one which, if the left-hand counter-stop is in operative position, will arrest thecarringe at .the printing point at which it iS then standing. This 1s indicated on the 'scale 56 on the frameof the typewriter' by the pointer 57 on the carriage.

For' returning any projected stop 21 to ineffective position, l t ere is provided a swinging cam-58 ivoted at 59 on the plunger frame 51, an arranged to be swung so that its cam-'face' G0 will lic in the path of any projectingstop 21, as seen at Fig. 4, and return said stop to ineffective position. The cam`face0' is preferably symmetrically arranged so that the movement of the .car ringe in either direction will cause the stops tc ride up over the cam and be returned to their ine'ective position. The member-58 may comprise a' handle'l by which -said member is 'swung into position. v Said member is normally drawn out of its operative position by means of aspring v(i2 .anchored toa pin 63 projectingfrom the 'frame 51,-, and said member carriesza 'stop pin 64whifeh is arranged, as seen 3, tobelj the casing 51 and prevent the membgiifrom being swungtoo far-outward. As is best loisseen in Fig.- 4, -when the camsare intheir the counterfstops 20, and the cam surface 6() y is preferably tapered down so that when the effective positions,'they over-liethe ends ofv It i' noted that 'the .counter-stops 20 areguid slots'65 inthe closedtop of 150 incense l improvements may be used without others.

Having thus described my invention, I claim:

1. In a typewriting machine, the combination with a rack bar, of a'. series of stops vertically slidable to eective and ineffective positions on said bar, an arm vertically slidable to slide said stops, means for guiding said'arm, a rock shaft for drawing said arm,

' and a key arranged to, swing said rock shaft.

2. In a typewriting machine, the combi- 'na-tion with a rack and stops thereon, of a stop setting key, a rock arm operated thereby, and a vertically slidable stop setting member moved by said rock arm and having a 'U-shaped extension overhanging the stops and moved downwardly when the key is depressedto set a stop.

3. In a typewriting machine, the combi- ,nation with a rack and stops thereon, of a stop setting key at the keyboard, a rock shaft adjacent the base of the machine swung by said key, a rock arm on said shaft, aA stop 'setting member extending from said rock arm to a point over said stops, and a guide adjacent said rack in which said setting member is vertically slidable downwardly to project the stops downwardly from the rack.

4. In a typewriting machine, the combination with a traveling carriage, of stops on said carriage, stops on the main frame of said machine, a casing for each set of stops set so that said casingspass'close to each other, the stops being normally within said casings and supported at the surface thereof, a key for projecting said stops to arrest said carriage, anda restoring cam for re turning the projected stops on the carriage, said key operable to advance said cam between the casings, said cam formed to return any stops in its path during said advance.

5. In a typewriting machine, the combination of a carriage, a' set of vertically slidable 'stops .carried thereby, an operating member movable vertically to selectively operate said stops, a machine frame, stops carried thereby, and means 'to selectively.operate said last named stops into position to coperate with the first .named stops.

6. ln a typewriting machine, the combina.- tion ot a carriage. a series of vertically slidablestops carried thereby, a stationary support, and mounted therein in position to operate said stops.

7. In a typewriting machine, the combination with plunger stops, of a `frame in which a vertically slidable memberl said stops are supported and guided, a'typewriter carriage, vertically movable stops carried thereby in position to travel adjacent i said plunger stops, a device to selectively set the carriage stops, and a re-setting device movable into a position between the plunger stops and Icarriage stops for returning the latter to ineffective position.

8. In a typewriting machine, the combination with a carriage, of vertically movable stops carried thereby, means to setsaid stops, and a returning cam movable horizontally into a stop-returning position, said cam formed to return the stops that lie in its path during said movement, and to cause the remaining set stops to be returned by the movement of the carriage.

9. In a typewriting machine, the combination with a carriage, of a series of vertically movable stops carried thereby and arranged in a line extending in the direction of the travel of the carriage, a vertically movable stop-setting device comprising a vertical arm in front of said stops and 'a part extending rearwardly over the stops, and stationary means' to guide said device in its vertical movement. v

1() In a typewriting machine, the combination with vertically slidable stops and a casing within which they normally lie, of a rack bar fast on the typewriter. carriage,'

stops on-said rack bar arranged to travel adjacent said casing, a vertically sli'dable setting device for selectively movingsaid rack stops downwardly to set position, and a cam arranged to be swungv oversaid first-named stops and into the path of said set rack stops for returning said stops to ineffective posi- 'cam formed to returnvthe stops' to inoperative position during said movement of the cam, and a key for moving said stops.

13. In a typewrit-ing machine, the combination with a casing and vertically slidable stops therein, of a. casing and rack stops movable therein closely adjacent said first casing, and a key-operated stop-projecting slide over-hanging the rack stops and slidable vertically downward for projecting said rack stops vertically downwardfrom their casing.

14. Ina typewriting machine. the combination with a carriage, of a series of vertiroo cally movable-stops carried thereby, a ma-"" .stops, and a vertically-slidable stop-setting 7 device overhanging the stops on the carriage .said stops select vely brought by the trave 'cf the carriage into position to be set by said device into position to be engaged by the counter-stops.

. 1'5. In a typeyvriting machine, the combii nation of a carnage, a set of vertically movable stops thereon, a machine frame, a set of vertically slidable stops therein, and a keyopeiated stop-setting device to selectively set the stops on the carriage into position to col operate with an operated stop on the machine fraine, said stop-setting device comprising an arm slidable up and down on the machine frame and having a projectonoverhanging the stops on the carnage.

ALFRED Gr.l F. KURO-W SKI. lVitnesses:

Trans H. InoNs, JULIUs DUCKSTINE. 

